- Johnson, William H.4
- Holman, A. T.3
- North Carolina State University -- Research3
- Oxford Tobacco Research Station3
- North Carolina State University. College of Agriculture and Life Sciences2
- Arnold, E. V.1
- Blair, E. C. (Enos Clarkson), 1892-19751
- Hassler, Francis J.1
- Jeter, F. H. (Frank Hamilton), 1891-19551
- News & Observer (Raleigh, N.C.)1
- North Carolina State College. Department of Agricultural Engineering1
- North Carolina State University. College of Agriculture and Life Sciences. Department of Communication Services1
- Puckett, H. B.1
- United States. Department of Agriculture1